Young trees need regular watering to establish. Mature trees are drought-tolerant but benefit from occasional deep watering during prolonged dry spells, especially in hot climates. Ensure well-drained soil to prevent root rot. Reduce watering significantly in winter.

Prune in late winter or early spring before new growth begins. Remove dead, damaged, or crossing branches to maintain a strong structure and good air circulation. Mimosa trees are prone to weak branch unions, so structural pruning is important to prevent breakage. Remove suckers from the base.

Easily propagated from seeds, which often require scarification or stratification to break dormancy. Cuttings can also be taken from semi-hardwood in summer, though success rates may vary. Seeds are the most common and reliable method, often self-seeding in favorable conditions.

Not typically a potted plant due to its size, but young trees grown in containers will need repotting every 1-2 years into a larger pot with fresh, well-draining potting mix. Once they reach a certain size, they should be transplanted into the ground. Ensure good drainage.